I notice that on my iPod touch, at the top right edge there's this tiny spot whereby the backlight seems somewhat darker than the rest. I realised this when reading an eBook on my iPod. In dark backgrounds, strangely this area appears as backlight bleeding. I particularly notice this only when the backlight is low. When I turn it on max it isn't noticeable at all. Is this a problem I should be concerned about? Does anyone's iPod have the same problem? Many thanks!